Zeenit - Analytik Jena AG

ZEEnit
Quality is the difference

More than 150 years of experience in the field of
Optical Spectroscopy
Analytik Jena has a long tradition in developing high quality and precision
analytical systems which dates back to the inventions made by Ernst Abbe and
Carl Zeiss. Today Analytik Jena is a leading manufacturer of high performance
analytical instruments and one of the most innovative companies.
1874 First spectrometer
1924 First Pulfrich photometer – the
basis for the development of
spectrophotometry in Jena
1937 First flame photometer – Carl Zeiss
establishes the methodology of flame
photometry
1963 SPEKOL and SPECORD update the
tradition of Pulfrich photometers in Jena
1969 Prototype of the first commercial
flame AAS
1971 Launching of the first AAS 1 of
Carl Zeiss Jena
1982 First simultaneously measuring
UV/Vis spectrometer with MCS
1993 Introduction of the first Zeiss-AAS
graphite system with transverse-heated
graphite furnace
2000 AAS ZEEnit, the first transverse-heated
Zeeman graphite furnace AAS
instrument with variable magnetic
field and 3field mode
2003 First high speed photometer with
50 cell changer and Diode Array Detector
2004 Analytik Jena AG presents the first
High-Resolution Continuum Source AAS
(HR-CS AAS) worldwide, a revolution
in Atomic Absorption
2006 HR-CS AAS for graphite furnace
technology

4
ZEEnit
Recent technologies translated into a family
of instruments that sets new standards
Decades of experience in the development of spectrometers,
plus the most recent findings made in electronics, magnetic field
technology and furnace design, have gone into the ZEEnit
series. The ZEEnit 700 P completes yet another milestone in
spectrometer development at Analytik Jena: A system that com-
bines excellent analytical performance with a high degree of
user friendliness.
Dual atomizer concept
A design that is impressive because of its functionality. Change
of techniques without any mechanical movement, conversion or
readjustment – immediately ready for use.
Transverse-heated graphite furnace
The future-oriented furnace heating concept, which can cope
with a variety of samples, including complex matrices and
refractory elements.
Third-generation magnetic field technology
Maximum sensitivity and optimum matching to the analytical
problem thanks to the variable magnetic field strength up to 1.0
Tesla and the use of two different correction modes. Expansion
of the linear working range by means of the 3field technique,
and a dynamic mode for automatic adaptation to varied element
contents – the ZEEnit opens up unparalleled capabilities in
Zeeman graphite furnace AAS.
Automation has never been more convincing
Flexibility and efficiency, musts in fully automatic sample prepa-
ration, are provided by AS 51/52 and MPE 60 z, intelligent
autosamplers for more than just automatic dosing. Functions
such as intelligent dilution and preconcentration, automatic dos-
ing of modifiers, and automatic depth adjustment, combined
with high dosing precision, make overnight operation a mere
routine and guarantee profitable sample throughputs.
ZEEnit Plus
The new ZEEnit series includes the ZEEnit 650 P, a Zeeman AAS
for graphite furnace and hydride technology and the ZEEnit 700 P,
a compact tandem spectrometer for flame mode, hydride and
graphite furnace technology. Both devices are able to analyze
liquid and solid samples in one and the same system.
Both systems combine intelligent design with optimum func-
tionality and convincing performance features:
Plus 8 lamp changer for maximum automation and
sample throughput
Plus Single and double beam available
Plus D2 background correction and Zeeman third
generation background correction
Plus Integrated RFID Tool for working with coded
lamps
Plus Integrated super lamp power supply for best
analytical performance
Plus Integrated High-end Vision Tool for best observati-
on and control of sample injection and sample drying
in the graphite tube
Plus Direct analysis of solid samples

A match for every requirement
Variable sample feeding techniques
This is unique: Smooth feeding of liquids and solids (direct
analysis), and fast change between both techniques.
ASpect LS data analysis and control software
A convincing software concept that is not only efficient for laboratory
routine but also gives the user every freedom for method
development and optimization. Analytical quality assurance and
validation feature greatly in this product.
Long high-performance life guaranteed
for 10 years
Quartz coated optics and encapsulation guard against corrosive
laboratory atmospheres and extend the life span – an advantage
we pass on to our customers: A long-term warranty of ten years
is standard for our atomic absorption spectrometers!
Thoroughly studied burner-atomizer system
A burner-nebulizer-system optimized over many AAS generations
and a mature mixing chamber concept ensures stable
operation and high repeatability in the flame mode.
Designed-in safety
Safe operation is a top priority especially in flame AAS.
With a multitude of sensors, all safety-relevant parameters are
constantly monitored and controlled. All functions, from flame
ignition to switching types of gas and to safe quenching, are
PC controlled and fully automated.
ZEEnit 700 P with hydride system
and AS 52 s
5

6
ZEEnit
State-of-the-art technology for higher
accuracy and precision
A unique furnace design
The transverse-heated graphite furnace is a must where optimum
atomization conditions and high sample throughput are required
simultaneously. This clearly superior concept has, for a number
of years, been successfully employed in all Analytik Jena graphite
furnace AAS systems. It guarantees uniform temperature all along
the optical axis throughout the tube and eliminates memory and
condensation effects that occur at the cooler tube ends of con-
ventional, longitudinally heated graphite tubes. Lower atomizing
temperatures prolong tube life. Problem-free analysis of low-
volatility elements (e.g., vanadium, molybdenum), and the
direct analysis of solid samples are possible.
Sensorless adaptive temperature control (STC) completely monitors
the function of the graphite tube and compares important actual
furnace parameters with the settings. Deviations of the tube resist-
ance caused by chemical corrosion and ageing of the graphite
material are immediately corrected, and the correct temperature is
readjusted. The temperature inside the graphite tube is monitored
and recalibrated by a unique emission-independent, pyrometric
quotient method. A formation routine optimally prepares new
tubes for the analyses and checks the overall status of the fur-
nace. This is the only way to ensure that your measurements
stay comparable over long times.
STPF Left to right:
Thanks to the consistent implementa-
tion of the “Stabilized Temperature
Platform Furnace” (STPF) concept,
atomization interferences are reduced
to a minimum. This directly im-
proves the accuracy of the analytical
data. The ZEEnit thus meets all require-
ments for interference-free graphite
furnace analyses. This considerably
increases efficiency, and saves time.
Graphite tube change
without adjustment
SSA 600
Solid sample carrier
Liquid dosing unit
The resulting benefits for your daily routine speak for themselves:
Marked improvement in accuracy
Transverse-heated graphite tubes considerably diminish many
chemical interferences and therefore matrix effects. As a conse-
quence, your analyses are almost memory-free.
Cost-efficient analyses
To save operating costs, you can choose between two types of
tubes:
The platform tube allows you to determine all elements with
just one tube – no need to change tubes during a multielement
routine. For simple applications, the low-cost wall tube is the
best choice.
Time-saving and amazingly easy
The transverse-heated tube design makes tube change and
adjusting the sampler pipetting tip easier than ever before.

Flexible analysis for all kinds of samples
The ZEEnit is the only system worldwide that permits the direct
feeding of both liquid and solid samples using the solidAA ®
technology. The dream of smoothly changing between liquid
and solid techniques has come true. With its built-in Zeeman
system, the ZEEnit of Analytik Jena excel with the exacting
demands the direct analysis of solids places on background cor-
rection and on the graphite furnace.
Two different feeding systems for solid samples
are available:
SSA 6 z – manual solid sampler
Manual module for the reproducible insertion and removal of
the sample carrier. Even with external manual weighing, auto-
matic data transfer is made via the ASpect LS software.
SSA 600 – automatic solid sampler with integrated
microbalance
This system allows routine solid AAS. Not only transport of the
loaded sample carrier into the furnace but also weighing with the
fully integrated microbalance is completely automated.
Liquid dosing unit for versatile applications
With the new liquid dosing module, solid sampling becomes
even easier. A liquid calibration out of one or more stock solu-
tions now is done automatically by the sampler. The modifier is
also automatically pipetted to each solid or liquid sample.
A specially optimized sample carrier can be used for many kinds
of solids – from powders to granulates. The carrier geometry
ensures optimum atomizing conditions in the solid tube and reli-
able transfer processes in sample feeding.
The analytical advantages
Analysis of the unadulterated original samples
No time-consuming sample digestion
No dilution effect with substances harmful to health or
the environment
Minimized risk of contamination
High sensitivity
Genuine microvolume method (sample volumes in the
order of µg or mg)
Detection limits in the pg and fg ranges
The economic benefits
Speed
Reduced costs
Flexibility
Efficiency

8
ZEEnit
User-oriented:
New standards of operating convenience
The „Dual-Atomizer“ concept, an important component of
the new design concept, guarantees a fast and unproblematic
change from flame mode to graphite technology. Completely
without readjustment or complicated change of autosampler
— one click in the software does it all. That means fastest opera-
tional readiness and simple handling for the user.
Among the basic conditions for smooth operation in trace anal-
ysis are regular maintenance and cleaning of the furnace parts.
The furnace slides out of the sample compartment to a defined
parking position, which provides the necessary access for clean-
ing and maintenance.
Completely automated optimization of the
parameters
Great emphasis is placed on innovative functionality when
developing devices. Fully automatic routines optimize the analy-
sis process and thus also guarantee the optimum conditions at
high sample throughput and therefore the maximum reliability
of the results.
Pyrolysis and atomization temperatures are changed using the
„Optimization of the furnace parameters“ software function and
adapted to the respective application. At the same time, an inte-
grated camera, the „Furnace Vision Tool“ monitors the deposi-
tion of droplets and the drying phase in the graphite tube.
Information in unique full-color image quality provides detailed
monitoring and effective correction.
In the new ZEEnit family all lamp data are automatically read
and recorded using a RFID tool for highest operator
convinience.
The lamp is identified during initialization, the operating para-
meters are set and the running times are monitored.
Display of coded lamp parameters
Sequences of the integrated camera in the graphite furnace

ZEEnit 650 P and SSA 600 Graphite furnace in service position
The ZEEnit 700 P offers solutions for fast, automated routine
operation, whether absorption or emission. To achieve optimum
results, fuel composition and burner height can be automatically
adjusted to the respective sample. The fully automated Total
Flow Gasbox, which is integrated in all ZEEnit systems, ensures
the settings and monitoring of all gas parameters.
Thanks to automatic height adjustment, the burner head is
always at a perfect position. Even for changing requirements and
measurements of different elements in one sequence the condi-
tions are always kept at an optimum by the efficient optimization
routine.
Accessories
Accessories such as the Segmented Flow Star (SFS) or the Scraper
help you face the challenges of complex matrices in flame analysis.
The SFS is capable of dosing minuscule sample volumes by time-
controlled flow injection. Thanks to continuous system rinsing, it
extends the stable working time with samples of high matrix or salt
contents. The Scraper facilitates work with the nitrous oxide flame.
It automatically removes graphite deposits from the burner slot,
ensuring continuous operation and minimizing manual cleaning
chores.
Left to right:
Coded HCL
SFS 6 Injection
Module
Scraper – the automatic
cleaning module
9

10
ZEEnit
For maximum efficiency and high sample
throughput
MPE 60 z
The automation concept
AS 51 s and AS 52 s make your routine analyses of standards
and samples almost fully automatic. Integrated in the over-
all concept of the instrument, either sampler can be simply
installed directly into the sample compartment. This saves space
and minimizes tubing lengths – the best way to prevent con-
tamination in case of real samples.
To prolong the service life of the samplers, all parts possibly
contacted by acids or solvents are made of corrosion-resistant
materials. Varied, freely selectable rinsing routines markedly
reduce the risk of carry-over and contamination.
The intelligent dilution function of the AS 52 s makes manual
dilution, a time-consuming and error-prone process, unneces-
sary. Automatically, it dilutes your samples down to a factor of
1:625. Therefore, sample lots with greatly varying element con-
tents can be processed without interruption.
More than only a sampler
With the MPE 60 z, the autosampler for graphite furnace
AAS of liquid samples, automated sample preparation and
analysis are easy:
Automatic generation of reference curves from one or
several stock solutions (up to ten points)
Dosing of extremely small sample volumes with excel-
lent repeatability
Automatic sample dilution and enrichment by a speci-
fied factor
Intelligent automatic dilution of samples exceeding the
calibration range; clean control limits to avoid contami-
nation
Automatic enrichment of samples below the calibration
range
Unique automatic correction of the immersion depth for
every vessel containing sample or other liquid
Robust, low-noise operation
Fast, easy adjustment
Its many functions and the automatic running of optimizing
routines make the MPE 60 z an intelligent sample preparation
station.
If concentrations exceed the calibration range, an automatic
clean control prevents contamination of the subsequent sam-
ples. All these functions are completely integrated in the
autosampler, so no costly, space-consuming extras are required.

AS 52 s Hydride system
With a simple lock mechanism, changing burner heads is just as
easy as attaching the sample cell unit for hydride technology.
The determination of mercury and the hydride-forming elements
down to the lowest concentration ranges has always been a special
challenge. The ZEEnit takes up that challenge with a diversity of
solutions. Combination with the hydride systems can be imple-
mented in two ways.
The traditional way: Atomization in the electronically heated
quartz cell.
The future-oriented way: Hydride formation coupled with
Electrothermal Atomization.
HydrEA technique
Coupling the hydride and graphite furnace techniques opens up
new prospects for the determination of hydride-forming elements
(e.g., As, Se, Sb). As these elements can be preconcentrated in
the graphite tube, the detection sensitivity increases, cross-over
effects and contamination problems are minimized and matrix
influences are reduced – the appropriate response to the demand
for ever lower detection limits.
Sample tray
11

12
ZEEnit
Third generation Zeeman magnetic field
technology
In addition to efficient deuterium background correction, Zeeman
technology is a must for many applications. In other commercially
available Zeeman systems, the magnetic field has a fixed strength.
The ZEEnit allows the user to vary the magnetic field strength.
The advantages are obvious:
Optimum sensitivity
This is the only way to exploit the benefits of the Zeeman system
for all elements. Varied according to the Zeeman factor, the mag-
netic field strength guarantees optimum sensitivity in every case.
Flexibility with varying concentrations
To ensure fully automatic routine work despite varying concen-
trations, the dynamic mode combines the 2field and 3field tech-
niques. Two absorbances are measured within a measurement
cycle, and two calibration curves established (Fig. 3). Depending
on the concentration, either the high- or low-sensitivity calibra-
tion curve is used for data analysis. Large batches of samples
with varied contents can thus be processed fully automatically.
Fig. 1: Expansion of the linear working range
Fig. 2: Higher sensitivity through an increase of the
magnetic field strength
Wide dynamic measuring range
Added to the conventional 2field mode (magnetic field on or
off), the unique 3field mode (magnetic field off, medium, or
maximum) provides the user with unparalleled analytical capa-
bilities. The use of the variable magnetic field in the special data
extraction mode makes it possible to calibrate over more than
two concentration decades in Zeeman GF AAS. The measuring
range and the linearity are considerably expanded towards higher
element concentrations. High-factor dilutions are no longer
required. Problems caused by diluent contamination and error
sources in sample preparation can be avoided. This saves time
and facilitates routine with higher element contents also.
Fig. 3: Application of the
dynamic mode for Pb
calibration from 10 to
1000 µg/L

Clearly structured and flexible – just how
modern software should be
ASpect offers both routine operation and multifarious develop-
ment and optimization facilities. It allows comprehensive control,
monitoring and recording of all processes run in the spectrometer
and its accessories.
Advanced user-friendliness
Simple, routine handling on one hand, great flexibility on the
other – ASpect meets both requirements with perfection. The
clearly laid-out user interface makes method development on the
screen fast and simple. Ready-to-use cookbook programs facilitate
getting into method development. With automatic optimizing rou-
tines, the user can easily test the limits of the system's capabilities.
Automated optimization
The comprehensive external PC software ensures the highest
degree of automation for all techniques. The automatic optimiz-
ing routine simplifies the adaptation of methods to an unknown
matrix. All parameters and functions are automatically moni-
tored and controlled. The software automatically optimizes and
adapts flame and graphite tube parameters, such as Zeeman
magnetic field strength in the 2field or 3field mode, atomizing
and pyrolysis temperature, roll-over effect, and control of the
3field mode.
Data postprocessing the easy way
To postprocess measured data by external programs, ASpect ®
offers diverse export routines in compatible data formats.
Linking into networks or data transfer into LIMS system is not a
problem either.
Display of measured data
Quality assurance control chart
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14
ZEEnit
Conforming to standards and rigorous
requirements
Quality Control and GLP
In view of today's statutory and in-house requirements, compre-
hensive quality assurance is a prime consideration implemented
in the AAS software. According to GLP, all analytical data must
be accessible and their accuracy ascertained and documented.
Compliance with these requirements can be assured by a variety
of measures for the fully automatic monitoring of the precision
and accuracy of measurements:
Keeping different control charts for statistical quality control
Various responses when error limits are exceeded or
warning levels reached
Automatic instrument functionality test
Data recording and printout conforming to GLP
Self Check System (SCS)
Maximum operating safety
High user safety through safety valve technology and opti-
mal measuring conditions and high operating safety
through automatic control of gas flows and safety valve
technology
High operating safety of the furnace through fully automat-
ed furnace system control
High system service life through automatic temperature
monitoring
Electrical operating safety
User Management
Gas pressure safety through software controlled monitoring
of the optimal pressures of the gases
Ensuring smooth non-stop operation through automatic
control of liquid quantities and safety functions
FDA 21 CFR Part 11
Conformity to FDA 21 CFR Part 11 is a must for modern analysis
software. The functions integrated in ASpect LS ensure data
securi-
ty as well as the reliability, lucidity and traceability of all actions
throughout the measuring time. All processes are presented in
easily comprehensible terms and with a clear layout.
Comprehensive user management, an electronic signature facility
and the Audit Trail satisfy the requirements of FDA 21 CFR Part 11.
In the User Management function you can define the access
rights of individual users. Passwords with specified runtimes
guarantee data security.
In the Audit Trail, all actions and accesses during the run of a
measurement are lucidly recorded. Together with the electronic
signature, this allows every result to be traced back and prevents
manipulations.
Convincing at every audit!
Audit Trail

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as furhter technical development!
en · 03/2012 · 888-11003-2 · Förster & Borries GmbH & Co.KG
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